hwlocality_glibc_sched − Interoperability with glibc sched affinity
static int
hwloc_cpuset_to_glibc_sched_affinity
(hwloc_topology_t topology,
hwloc_const_cpuset_t hwlocset, cpu_set_t *schedset,
size_t schedsetsize)
static int hwloc_cpuset_from_glibc_sched_affinity
(hwloc_topology_t topology, hwloc_cpuset_t
hwlocset, const cpu_set_t *schedset, size_t
schedsetsize)
This interface offers ways to convert between hwloc cpusets and glibc cpusets such as those manipulated by sched_getaffinity() or pthread_attr_setaffinity_np().
Note
Topology topology must match the current machine.
Convert glibc sched affinity CPU set schedset into hwloc CPU set. This function may be used before calling sched_setaffinity or any other function that takes a cpu_set_t as input parameter.
schedsetsize should be sizeof(cpu_set_t) unless schedset was dynamically allocated with CPU_ALLOC
Returns
0 on success.
-1 with errno set to ENOMEM if some internal reallocation failed.
Convert hwloc CPU set toposet into glibc sched affinity CPU set schedset. This function may be used before calling sched_setaffinity or any other function that takes a cpu_set_t as input parameter.
schedsetsize should be sizeof(cpu_set_t) unless schedset was dynamically allocated with CPU_ALLOC
Returns
0.
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